Miniera di Ngwenya (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Miniera di Ngwenya" in Italian language version.

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edinburghgeolsoc.org

Bill Baird, Ancient mining in Swaziland, in The Edinburgh Geologist, vol. 42, 2004.

R. A. Dart e P. Beaumont, Evidence of Iron Ore Mining in Southern Africa in the Middle Stone Age, in Current Anthropology, vol. 10, n. 1, 1969, pp. 127–128, JSTOR 2740688.
Jacques A. Waïtzenegger, Francis d'A. Collings e Reimer O. Carstens, The Economy of Swaziland (L'économie du Swaziland) (La economía de Swazilandia), in Staff Papers - International Monetary Fund, vol. 17, n. 2, 1970, pp. 390–452, JSTOR 3866292.

George J. Coakley, The Mineral Industry of Swaziland (PDF), su minerals.usgs.gov, United States Geological Survey. URL consultato il 22 gennaio 2010.